Home / 54,411.12-75,085.08-30,539.76

Finding the Fourth Proportional to 54,411.12, 75,085.08 and 30,539.76

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Solution

The fourth proportional to 54,411.12, 75,085.08 and 30,539.76 is: 42,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,411.12 : 75,085.08 = 30,539.76 : x
  2. Step 2: Convert to fraction form
    54,411.12/75,085.08 = 30,539.76/x
  3. Step 3: Cross multiply
    54,411.12x = 75,085.08 × 30,539.76
  4. Step 4: Simplify right side
    54,411.12x = 2,293,080,322.78
  5. Step 5: Solve for x
    x = 2,293,080,322.78/54,411.12
  6. Step 6: Final answer
    x = 42,143.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.